.loginForm {
    position: fixed;
    background-color: rgba(0, 0, 0, 0.8);
    width: 400px;
    height: 300px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 20px;
    z-index: 900;
    .loginTittle {
        text-align: center;
        height: 60px;
        line-height: 60px;
        font-size: 30px;
        color: white;
        font-weight: bold;
    }
}